我正在尝试创建自己的ansible模块(将更新cmdb),我正在寻找如何在模块代码中使用ansible_facts?
我的模块脚本示例是:
#!/usr/bin/python
from ansible.module_utils.basic import *
import json, ast
from servicenow import ServiceNow
from servicenow import Connection
def __get_server_info(table,server_name="", sys_id=""):
if sys_id == "":
return table.fetch_one({'name': server_name})
if server_name == "":
return table.fetch_one({'sys_id': sys_id})
def __update_cmdb_hwinfo(table, sys_id, server_name=""):
return table.update({'sys_id': sys_id,{'hw_ram': 'Here for example i want to put ansible_facts about server ram size'})
def main():
fields = {
"snow_instance": {"required": True, "type": "str"},
"snow_username": {"required": True, "type": "str"},
"snow_password": {"required": True, "type": "str"},
"server_name": {"required": True, "type": "str" },
"api_type": {"default": "JSONv2", "type": "str"},
}
module = AnsibleModule(argument_spec=fields)
snow_connection = Connection.Auth(username=module.params['snow_username'], password=module.params['snow_password'], instance=module.params['snow_instance'], api=module.params['api_typ
e'])
server = ServiceNow.Base(snow_connection)
server.__table__ = 'cmdb_ci_server_list.do'
machine = __get_server_info(server, )
## Define connection object to ServiceNow instance
module.exit_json(changed=False, meta=module.params, msg=machine)
if __name__ == '__main__':
main()
我应该用什么变量来调用模块脚本中的ansible_facts? (甚至可能吗?)。
答案 0 :(得分:1)
我怀疑这可能来自内部模块本身,因为它们是在具有预定义参数的远程机器的上下文中执行的。
但您可以使用动作插件(在本地上下文中执行)包装模块,从可用变量中收集所需数据并将它们作为参数传递给模块。
像这样(./action_plugins/a_test.py):
from ansible.plugins.action import ActionBase
class ActionModule(ActionBase):
def run(self, tmp=None, task_vars=None):
result = super(ActionModule, self).run(tmp, task_vars)
module_args = self._task.args.copy()
module_args['mem_size'] = self._templar._available_variables.get('ansible_memtotal_mb')
return self._execute_module(module_args=module_args, task_vars=task_vars, tmp=tmp)
在这种情况下,如果您的模块需要mem_size
参数,则会使用操作插件将其设置为ansible_memtotal_mb
的值。
模块示例(./library/a_test.py):
#!/usr/bin/python
def main():
module = AnsibleModule(
argument_spec = dict(
mem_size=dict(required=False, default=None),
),
supports_check_mode = False
)
module.exit_json(changed=False, mem_size=module.params['mem_size'])
from ansible.module_utils.basic import *
from ansible.module_utils.urls import *
main()
测试剧本:
---
- hosts: all
tasks:
- a_test: